My 2006 Prius headlights work fine but when I toggle to hi-beam only the driver-side goes to hi-beam, the passenger-side doesn't and every time I try the 10amp fuse blows. I have tried the following: 1. replaced fuse 2. replaced bulb 3. replaced ballast 4. made sure shutter not stuck I can hear the H-LP and DIM relays click. What should I try next? Replace the HL-P or the DIM?